It looks like the command is trying to compare the VMtools that are installed to the VMtools on the media. If you do the right click/install vmtools on the virtual machine in vSphere and then run the command again does it give you a better response?
If vSphere says it's OK, then it's OK is pretty much the bottom line either way.
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Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.